![]() ![]() Now you are using components! Once you convert all views, you shouldīe able to remove Phoenix.View as a dependency from your project. You can address this by converting the layout into a function component Your templates may now break if they are calling render_layout/4. If passing all assigns, render("_form.html", assigns) becomes For instance, render("_form.html", changeset: user: now be called as. You can address this by replacing render/2 with a functionĬomponent. Your templates may now break if they are calling render/2. Alternatively, you can moveīoth the HTML file and its templates to the controllers directory, Replace use MyApp, :view by use MyApp, :html and invokeĮmbed_templates "./templates/my/*". Replace render_existing/3 calls by function_exported?/3 checks,Īccording to the render_existing documentation. Then, for each view, you must follow these steps (we will assume the Recomend to add import Phoenix.View inside def html while migrating. This function is similar to def view, but it replaces use Phoenix.Viewīy use Phoenix.Component (requires LiveView 0.18.3 or later). The first step is to define def html in your lib/my_app_web.ex module. It may be helpful to generate a new project using Phoenix v1.7+ to compare You shouldĪlso be able to migrate one view at a time. Migrating your current views to components be done in a few steps. However, note Phoenix v1.7 is backwards compatible with v1.6 if you want to ![]() Use Phoenix.Component (+ embed_templates) The table below summarizes how the defaults changed from Phoenix v1.6 to v1.7: Feature Traditional request/response life cycles with the composable component The benefit of Phoenix.Component is that it unifies the rendering of Written as: defmodule YourAppWeb.UserHTML do use YourAppWeb, :html embed_templates "users/*" end Templates as functional components, using the embed_templates function.įor example, in Phoenix v1.7+, the YourAppWeb.UserView above would be With Phoenix v1.7+ we can also use Phoenix.Component to render traditional In Phoenix.LiveView, Phoenix.View was replaced by Phoenix.Component. More about format encoders in Phoenix.Template documentation. Phoenix ships with some template engines and format encoders, whichĬan be further configured in the Phoenix application. json extension, Phoenix knows how toĮncode the map returned for the "user.json" template into an actual For example, if you want to render JSON data, weĬould do so by adding a "show.json" entry to render/2 in our view: defmodule YourAppWeb.UserView do use YourAppWeb, :view def render ( "show.json", % )īecause the template has the. This inner representation allows us to separate how templates render and render ( YourApp.UserView, "index.html", name : "John Doe" ) #=>. While we got a string at the end, that's not actually what our templates render_to_string ( YourApp.UserView, "index.html", name : "John Doe" ) #=> "Hello John Doe" In the previous section we have rendered the "index.html" template: Phoenix.View. render_to_string ( YourApp.UserView, "index.html", name : "John Doe" ) #=> "Hello John Doe"Ī template has a name, which also contains a format. After it isĬompiled, the template can be rendered as: Phoenix.View. To compile the code in the file into Elixir source code. heex extension maps to a template engine which tells Phoenix how Template: # your_app_web/templates/user/ Hello Phoenix.View will automatically load all templates at "your_app_web/templates/user"Īnd include them in the YourApp.UserView. Then you could use the definition above to define any view in your application: defmodule YourAppWeb.UserView do use YourAppWeb, :view endīecause we defined the template root to be "lib/your_app_web/templates", def view do quote do use Phoenix.View, root : "lib/your_app_web/templates", namespace : YourAppWeb # Import convenience functions from controllers import Phoenix.Controller, only : # Use all HTML functionality (forms, tags, etc) use Phoenix.HTML import YourAppWeb.ErrorHelpers import YourAppWeb.Gettext end end #. It generally looked like this: defmodule YourAppWeb do #. In Phoenix v1.6 and earlier, new Phoenix apps defined a blueprint for viewsĪt lib/your_app_web.ex. See the "Replaced by Phoenix.Component" section below. Out of fashion in favor of Phoenix.Component, even in non LiveView With design patterns introduced by Phoenix.LiveView, this module has fallen ![]() Settings View Source Phoenix.View (phoenix_view v2.0.2)Ī module for generating render/2 functions from templates on disk. ![]()
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